Deli, i think this is a really good thread!
For me, as much as I can't stand to admit it to myself, I do depend on T in some sense. So for me, there is the thought of being abandoned by her.
I agree entirely with what polarsmom said. I have an emotional connection with T, so that can bring up feelings of abandonment in some situations. I have never in my time with T felt rejected by her. I've had fears of rejection, but have never felt rejected.
I think given the overall strangeness of the therapy relationship can turn feelings of rejection into feelings of abandonment. Although they are two separate things, I believe they can often be overlapped.
Great thread, Deli.